<template>
  <div class="app-container">
    <el-form :model="queryParams" ref="queryForm" size="small" :inline="true" v-show="showSearch" label-width="68px">
      <el-form-item label="评论内容" prop="content">
        <el-input
          v-model="queryParams.content"
          placeholder="请输入评论内容"
          clearable
          @keyup.enter.native="handleQuery"
        />
      </el-form-item>
      <el-form-item>
        <el-button type="primary" icon="el-icon-search" size="mini" @click="handleQuery">搜索</el-button>
        <el-button icon="el-icon-refresh" size="mini" @click="resetQuery">重置</el-button>
      </el-form-item>
    </el-form>

    <el-row :gutter="10" class="mb8">
      <el-col :span="1.5">
        <el-button
          type="danger"
          plain
          icon="el-icon-delete"
          size="mini"
          :disabled="multiple"
          @click="handleDelete"
          v-hasPermi="['jank:comment:remove']"
        >删除
        </el-button>
      </el-col>
      <el-col :span="1.5">
        <el-button
          type="warning"
          plain
          icon="el-icon-download"
          size="mini"
          @click="handleExport"
          v-hasPermi="['jank:comment:export']"
        >导出
        </el-button>
      </el-col>
      <right-toolbar :showSearch.sync="showSearch" @queryTable="getList"></right-toolbar>
    </el-row>

    <el-table v-loading="loading" :data="commentList" @selection-change="handleSelectionChange">
      <el-table-column type="selection" width="55" align="center"/>
      <el-table-column label="序号" align="center" width="60">
        <template v-slot="scope">
          {{ (queryParams.pageNum - 1) * queryParams.pageSize + scope.$index + 1 }}
        </template>
      </el-table-column>
      <el-table-column label="用户姓名" align="center" prop="user.username">
        <template v-slot="scope">
          <span class="empty-value">
<span v-if="scope" class="normal-text">
      {{ scope.row.username }}
    </span>
    <span v-else class="anonymous-text">
      <i class="el-icon-user-solid"></i> 匿名用户
    </span>
  </span>
        </template>
      </el-table-column>
      <el-table-column label="文章标题" align="center" prop="post.title">
        <template v-slot="scope">
        <span v-if="scope" class="normal-text">
      {{ scope.row.title }}
    </span>
          <span v-else class="no-title-text">
      <i class="el-icon-warning-outline"></i> 该文章暂无标题
    </span>
        </template>
      </el-table-column>
      <el-table-column label="评论内容" align="center" prop="content" :formatter="removePTags" width="500"/>
      <el-table-column label="评论时间" align="center" prop="createTime" :formatter="formatTime"/>
      <el-table-column label="操作" align="center" class-name="small-padding fixed-width">
        <template slot-scope="scope">
          <el-button
            size="mini"
            type="text"
            icon="el-icon-delete"
            @click="handleDelete(scope.row)"
            v-hasPermi="['jank:comment:remove']"
          >删除
          </el-button>
        </template>
      </el-table-column>
    </el-table>

    <pagination
      v-show="total>0"
      :total="total"
      :page.sync="queryParams.pageNum"
      :limit.sync="queryParams.pageSize"
      @pagination="getList"
    />

    <!-- 添加或修改评论功能对话框 -->
    <el-dialog :title="title" :visible.sync="open" width="1000px" append-to-body>
      <el-form ref="form" :model="form" :rules="rules" label-width="120px">
        <el-form-item label="评论所属用户ID" prop="userId">
          <el-input v-model="form.userId" placeholder="请输入评论所属用户ID"/>
        </el-form-item>
        <el-form-item label="评论内容" prop="content">
          <editor v-model="form.content" :min-height="192"/>
        </el-form-item>

        <el-form-item label="评论所属文章ID" prop="postId">
          <el-input v-model="form.postId" placeholder="请输入评论所属文章ID"/>
        </el-form-item>

      </el-form>
      <div slot="footer" class="dialog-footer">
        <el-button type="primary" @click="submitForm">确 定</el-button>
        <el-button @click="cancel">取 消</el-button>
      </div>
    </el-dialog>
  </div>
</template>


<script>
import {listComment, getComment, delComment, addComment, updateComment} from '@/api/jank/comment'
import {listCommentWithUserAndPost} from '@/api/jank/comment'

export default {
  name: 'Comment',
  data() {
    return {
      // 遮罩层
      loading: true,
      // 选中数组
      ids: [],
      // 非单个禁用
      single: true,
      // 非多个禁用
      multiple: true,
      // 显示搜索条件
      showSearch: true,
      // 总条数
      total: 0,
      // 评论功能表格数据
      commentList: [],
      // 弹出层标题
      title: '',
      // 是否显示弹出层
      open: false,
      // 查询参数
      queryParams: {
        pageNum: 1,
        pageSize: 10,
        content: null,
        userId: null,
        postId: null,
        replyToCommentId: null,
        createTime: null,
        deleted: null
      },
      // 表单参数
      form: {},
      // 表单校验
      rules: {
        content: [
          {required: true, message: '评论内容不能为空', trigger: 'blur'}
        ],
        userId: [
          {required: true, message: '类目描述不能为空', trigger: 'blur'}],
        postId: [
          {required: true, message: '类目描述不能为空', trigger: 'blur'}]
      }
    }
  },
  created() {
    this.getList()
  },
  methods: {
    // 格式化时间
    formatTime(row, column, cellValue) {
      if (!cellValue) return '';
      const date = new Date(cellValue);
      const year = date.getFullYear();
      const month = (date.getMonth() + 1).toString().padStart(2, '0');
      const day = date.getDate().toString().padStart(2, '0');
      return `${year}-${month}-${day}`;
    },
    /** 查询评论功能列表 */
    getList() {
      this.loading = true;
      listCommentWithUserAndPost(this.queryParams).then(response => {
        this.commentList = response.rows;
        // 等待 listComment() 的结果解析完成
        listComment().then(res => {
          this.total = res; // res 应为 Number 类型
          this.loading = false;
        });
      }).catch(() => {
        this.loading = false;
      });
    },
    // 取消按钮
    cancel() {
      this.open = false
      this.reset()
    },
    // 表单重置
    reset() {
      this.form = {
        commentId: null,
        content: null,
        userId: null,
        postId: null,
        replyToCommentId: null,
        createdAt: null,
        updatedAt: null,
        deleted: null
      }
      this.resetForm('form')
    },
    /** 搜索按钮操作 */
    handleQuery() {
      this.queryParams.pageNum = 1
      this.getList()
    },
    /** 重置按钮操作 */
    resetQuery() {
      this.resetForm('queryForm')
      this.handleQuery()
    },
    // 多选框选中数据
    handleSelectionChange(selection) {
      this.ids = selection.map(item => item.commentId)
      this.single = selection.length !== 1
      this.multiple = !selection.length
    },
    /** 新增按钮操作 */
    handleAdd() {
      this.reset()
      this.open = true
      this.title = '添加评论功能'
    },
    /** 修改按钮操作 */
    handleUpdate(row) {
      this.reset()
      const commentId = row.commentId || this.ids
      getComment(commentId).then(response => {
        this.form = response.data
        this.open = true
        this.title = '修改评论功能'
      })
    },
    /** 提交按钮 */
    submitForm() {
      this.$refs['form'].validate(valid => {
        if (valid) {
          if (this.form.commentId != null) {
            updateComment(this.form).then(response => {
              this.$modal.msgSuccess('修改成功')
              this.open = false
              this.getList()
            })
          } else {
            addComment(this.form).then(response => {
              this.$modal.msgSuccess('新增成功')
              this.open = false
              this.getList()
            })
          }
        }
      })
    },
    /** 删除按钮操作 */
    handleDelete(row) {
      const commentIds = row.commentId || this.ids
      this.$modal.confirm('是否确认删除评论功能编号为"' + commentIds + '"的数据项？').then(function () {
        return delComment(commentIds)
      }).then(() => {
        this.getList()
        this.$modal.msgSuccess('删除成功')
      }).catch(() => {
      })
    },
    /** 导出按钮操作 */
    handleExport() {
      this.download('jank/comment/export', {
        ...this.queryParams
      }, `comment_${new Date().getTime()}.xlsx`)
    },
    removePTags(row, column, cellValue) {
      if (cellValue) {
        return cellValue.replace(/<p>/g, '').replace(/<\/p>/g, '')
      }
      return ''
    }
  }
}
</script>

<style scoped>
.normal-text {
  color: #333;
}

.anonymous-text {
  color: #F56C6C;
  font-weight: bold;
  background-color: #fef0f0;
  padding: 2px 8px;
  border-radius: 4px;
}

.no-title-text {
  color: #E6A23C;
  font-weight: bold;
  background-color: #fdf6ec;
  padding: 2px 8px;
  border-radius: 4px;
}

.el-icon-user-solid, .el-icon-warning-outline {
  margin-right: 5px;
}
</style>
